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I have a four zone radiant heat with hot water demand using

Customer Question
a 370 tekmar control with...
I have a four zone radiant heat with hot water demand using a 370 tekmar control with a 054 thermostat what is the best and efficient control and thermostatreplacement for me to usewith the costs not totally out of control thank you
Submitted: 1 year ago.Category: HVAC
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Answered in 8 hours by:
11/26/2016
HVAC Technician: Rick, HVAC Supervisor replied 1 year ago
Rick
Rick, HVAC Supervisor
Category: HVAC
Satisfied Customers: 23,046
Experience: 40+ yrs. experience as a licensed oil & gas technician.
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Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your issue. First I’ll need some more info so I have a more complete picture of you situation

Are you looking to replace the Tekmar control as well as the thermostat?

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Customer reply replied 1 year ago
I am considering doing that as the sunsets are getting very difficult to find and I might be able to have a system this more efficient your thoughts?
Customer reply replied 1 year ago
Thermostats
HVAC Technician: Rick, HVAC Supervisor replied 1 year ago

Ok, first efficient thermostats is kind of a misnomer. Any programmable thermostat will reduce energy usage but radiant heat has too long of a recovery time lag to respond well to periodic set backs. So this Uponor is one good option
http://s3.supplyhouse.com/product_files/Uponor-A3100101-Product-Overview.pdf

If you still want a setback type thermostat the Nest is a decent choice

https://nest.com/blog/2012/11/13/warming-up-to-true-radiant/

As far as an operating control goes by far the most cost effective, simple and efficient option is the Beckett AquaSmart.

https://www.beckettcorp.com/product/aquasmart-7600-boiler-control/

It uses a proprietary algorithm to modulate boiler water temp without the need for outdoor sensors. It does what the Tekmar does at a fraction of the cost and complexity.

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Customer reply replied 1 year ago
Thanks Rick
will the uponor thermostat work with my existing 370 control
HVAC Technician: Rick, HVAC Supervisor replied 1 year ago

Possibly, I have no direct experience using non Tekmar components with a Tekmar controller.

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Customer reply replied 1 year ago
I paid for a possibly ?
HVAC Technician: Rick, HVAC Supervisor replied 1 year ago

You asked initially for thermostat AND control options. I gave those to you. If you had asked for a different manufacturer's stat to work with Tekmar I would not have answered since as far as I know only OEM Tekmar components are approved for use with their controllers.

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